function copyToClipboard(id, isHTML = true) {
  /* copy text to clipboard by element id set isHTML to false to copy plain text to the clipboard
  the default copy to the clipboard is HTML format */
    function handler (event){
        if(isHTML){
          event.clipboardData.setData('text/html', $("#" + id).html());
        }
        else{
          event.clipboardData.setData('text/plain', $("#" + id).text());
        }
        event.preventDefault();
        document.removeEventListener('copy', handler, true);
    }

    document.addEventListener('copy', handler, true);
    document.execCommand('copy');
}